We just purchased a 20013 Oasis this past weekend and have been out on it twice. So far we are loving the kayak, I will put up a separate review post later. I was wiping down the bottom of the kayak hull last night after we went out on it and I noticed what appears to be a bubble in the hull that was cut into at the mirage drive location. It looks like Hobie smooths out this area either by hand or with a machine. The hole in the hull doesn't go all the way through but since it is at the marine drive area, which appears to get a lot of stress from what I have been reading, should I be concerned?

We live 40 miles from the dealer and they delivered the kayak to us (for a price) since we have no way to transport it so we can't just load it up and take it to them to show them for their opinion.

Congratulations on your new Oasis and welcome to the forum! From your pics, this doesn't look like a structural problem. It's in a low stress area of the drivewell -- that notch is a guide for the Drive alignment pin and not subject to much pressure. The material tends to be thicker in the joints -- I don't think it should pose a problem. It could be plastic welded (Hobie used to supply the material at no charge), but I'd just leave it alone.

We have had it on the water for 5 hours now and there doesn't appear to be any leaking. If anything it looks like it does have an rounded shape going inward but not through the hull. Visually I do not see through it and I also tried to blow through it, I may have looked strange kissing the kayak, and no air was passing through.

I took some measurements when I got home from work. It is definitely some sort of bubble when it was molded because the area missing expands out from the external fissure. In whole the fissure / void is 1/2" long and 1/4" deep the height varies so no use in measuring that. I guess my big concern is how thick they make this area since I am missing 1/4" already.